Materials for tonight

• All materials can be found here: https://github.com/datadrivensupplychain/rladies-stl-optimization

• Have R and RStudio installed on your computer

• Install the following packages per the code below, and then run the script found here: https://github.com/datadrivensupplychain/teaching_bits/blob/main/ompr%20test.r

instll_pkgs <- c("ompr", "ompr.roi", "ROI.plugin.glpk")

install.packages(instll_pkgs)

• Calling the object result from the command line should yield Status: success and Objective Value: 11.25

R-Ladies St. Louis

Started in September 2017 by Jenine Harris and Chelsea West

Co-organizers for 2022-23 include:

• Jenine Harris (Washington University)
  
• Mary Painter (University of Colorado, Boulder)
  
• Shelly Cooper (Washington University)
  
• Crystal Lewis (Freelance Data Management Consultant)
  
• Laura Rose (Hinge Health)

2023 Winter/Spring Schedule

We have several speakers planned for this semester.

• Tonight: Intro to Linear Optimization with R with Ralph Asher (Data Driven Supply Chain)
• Wednesday Feb.22: Regular Expressions and Working with Text Strings with Luis D. Verde Arregoitia (Instituto de Ecologia, Mexico)
• Thursday April 13: Intro to data.table with Susanna Supalla (Hinge Health)
• TBD: Tips for R Markdown

Announcements

• We will be recording this talk

  • Feel free to turn off your cameras if you do not want to be recorded

• Use the chat to ask questions (to everyone or directly to the host)

Want to learn more or get involved?

Visit rladies.org to learn about the mission and global work of R-Ladies

About tonight’s speaker

• Ralph is the founder of Data Driven Supply Chain, LLC, a Minnesota-based consultancy that applies data science and AI methods, including linear optimization, to evaluate, design, and optimize clients’ supply chains.
• Prior to founding Data Driven Supply Chain, he worked as an Operations Research Scientist at Target, designing e-commerce supply chain networks, and at General Mills, designing warehousing networks.
• He can be reached at ralph@datadrivensupplychain.com